Manufacturing engineers design and improve the machines and assembly lines that make things. They work with robots, hydraulics and air-operated devices to help companies work faster and better with fewer mistakes.

Mechanical engineers design machines or things that move, like cars and trains. A mechanical engineer also might help design electricity generating stations, oil refineries, and factories.

Mechatronics engineers build robots and things that are like robots, but not exactly. They do things that are robotic-like.

Systems engineers look at how complicated things work and try to make them faster and smarter. They look at the big picture.

Many engineering projects engineers do are large and very complicated. Often different kinds of engineers work together and help each other. As an example, computer engineers need help from electrical engineers to build a computer. The computer needs programs written by software engineers. The computer could be used by aerospace engineers to control an airplane. An airplane is a big mechanical system with many parts, so a mechanical engineer and a systems engineer are also needed.